Look who’s in Who Do You Think You Are?

The popular BBC1 geneology series returns with a line-up of fascinating celebrities, including…JK RowlingThe best-selling Harry Potter author uncovers a story as dramatic as any she has written as she explores the French ancestry of her late mother. Her journey, which begins in Edinburgh, takes her from the Savoy Hotel in London to battlefields and the backstreets of Paris.

2/10

June Brown is regarded as being as Cockney as Bow Bells and jellied eels thanks to her BAFTA-nominated portrayal of EastEnders’ chain-smoking doyenne of the laundrette Dot Branning.

In the first programme, the 84-year-old actress embarks on a journey that takes her from Holland to Spain to uncover more about the Jewish ancestors of her East End-born mother Louisa.

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Lord Sebastian CoeThe London Olympics supremo investigates his grandmother’s claims of the family’s grand origins and travels to Jamaica where he discovers illegitimacy and a roguish sugar plantation owner in his history. In New York, he learns that an ancestor was involved in one of the city’s most dramatic events.

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Alan CarrThe comedian looks into his mother’s family and tries to find out more about a mysterious name-change that took place over the years. When he finally uncovers the startling truth, he learns more about a hidden period of social history.

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Emilia FoxThe Silent Witness and Merlin star explores the origins of her family’s acting roots to see how far back they go and discovers that an ancestor was responsible for a major 19th-century invention, but was hit by scandal.

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Larry LambLamb’s mother was adopted when she was a baby and her story inspires the EastEnders and Gavin&Stacey actor to look into the family’s unusual history, which leads to a moving meeting with a long-lost relative across the globe.

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Len GoodmanWhen the Strictly Come Dancing judge investigates his maternal line, his research unearths a tragedy that resulted in a suicide. He also travels to Poland to uncover the truth about an ancestor who was a freedom fighter.

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Tracey EminThe controversial artist finds out more about a story of hardship and hard labour as she investigates her family history, but she is heartened to discover that her ancestors are far from ordinary.

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Richard Madeley A bid to find out more about his heritage sees the presenter trace his family to the earliest Canadian and American settlers, and he finds out how an ancestor played a role in one of America’s bloodiest massacres.

10/10

Robin GibbThe Bee Gees singer unravels a story of stark poverty as he explores how his paternal great-grandfather became a decorated soldier. He also looks at the life of his maternal great-grandmother, a midwife, and is stunned by her connection to a blind baby… Who Do You Think You Are? screens each Wednesday on BBC1